Go

Get a Google Drive Access Token using a JSON Private Key

See more Google Drive Examples

Demonstrates how to get a Google Drive API access token using a JSON service account private key. Go

    success := false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // First load the JSON key into a string.
    fac := chilkat.NewFileAccess()
    jsonKey := fac.ReadEntireTextFile("qa_data/googleApi/chilkatcloud-b8826e030499.json","utf-8")
    if fac.LastMethodSuccess() != true {
        fmt.Println(fac.LastErrorText())
        fac.DisposeFileAccess()
        return
    }

    gAuth := chilkat.NewAuthGoogle()
    gAuth.SetJsonKey(*jsonKey)

    // Choose a scope.
    gAuth.SetScope("https://www.googleapis.com/auth/drive")

    // Request an access token that is valid for this many seconds.
    gAuth.SetExpireNumSeconds(3600)

    // If the application is requesting delegated access:
    // The email address of the user for which the application is requesting delegated access,
    // then set the email address here. (Otherwise leave it empty.)
    gAuth.SetSubEmailAddress("")

    // Connect to www.googleapis.com using TLS (TLS 1.2 is the default.)
    // The Chilkat socket object is used so that the connection can be established
    // through proxies or an SSH tunnel if desired.
    tlsSock := chilkat.NewSocket()
    success = tlsSock.Connect("www.googleapis.com",443,true,5000)
    if success != true {
        fmt.Println(tlsSock.LastErrorText())
        fac.DisposeFileAccess()
        gAuth.DisposeAuthGoogle()
        tlsSock.DisposeSocket()
        return
    }

    // Send the request to obtain the access token.
    success = gAuth.ObtainAccessToken(tlsSock)
    if success != true {
        fmt.Println(gAuth.LastErrorText())
        fac.DisposeFileAccess()
        gAuth.DisposeAuthGoogle()
        tlsSock.DisposeSocket()
        return
    }

    // Examine the access token:
    fmt.Println("Access Token: ", gAuth.AccessToken())

    fac.DisposeFileAccess()
    gAuth.DisposeAuthGoogle()
    tlsSock.DisposeSocket()